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The War
CHRONOLOGY, DECEMBER 1941 TO APRIL 1942’
1941
December 7
(December 8, Tokyo time)
Japan attacked LTnited States and British ter-
ritory beginning at 1 :20 p.m. (7: 50 a.m.,
Honolulu time) and occupied the Interna-
tional Settlement at Shanghai. New York
Times, December 8, 1941, pp. 1, 4; Decem-
ber 9, p. 14; Department of State Bulletin,
December 20, 1941, Vol. V, pp. 534—535.
Japan rejected United States document dated
November 26 delivered at 2: 20 p.m. at
Washington. Department of State Bulle-
tin, December 13, 1941, Vol. V, pp. 466—
470; ibid., December 20, 1941, Vol. V, pp.
534—535.
The Japanese Emperor declared war on the
United States and the British Empire.
New York Times, December 9, 1941, p. 28;
Department of State Bulletin, December 20,
1941, Vol. V, p. 557.
Canada declared a state of war with Japan.
Department of State Bulletin, December
20, 1941, Vol. V, p. 558.
Peru offered its assistance to the United
States in war with Japan. Ibid., Decem-
ber ‘13, 1941, Vol. V, p. 501.
Greece announced (on December 10) its sev-
erance of diplomatic relations with Japan.
Ibid., p. 509; ibid., April 18, 1942, Vol. VI,
p. 344.
Yugoslavia announced (on January 19, 1942)
a state of war with Japan. Ibid., February
7, 1942, Vol. VI, p. 144.
1941
December 8
Japan invaded Thailand, which capitulated.
New York Times, December 9, 1941, p. 10.
Great Britain declared war on Japan. New
York Times, December 9, 1941, p. 1; De-
partment of State Bulletin, December 20,
1941, Vol. V, p. 557.
The United States declared a state of war
with Japan (4: 10 p.m.). Department of
State Bulletin, December 13, 1941, Vol. V,
p. 475; ibid., December 20, 1941, Vol. V,
p. 557.
Australia declared a state of war with Japan.
Ibid., December 20, 1941, Vol. V, p. 559.
Brazil announced its solidarity with the
United States in war with Japan. Ibid.,
December 13, 1941, Vol. V, p. 488.
Colombia severed diplomatic relations with
Japan. Ibid., pp. 489—490; ibid:, April 18,
1942, Vol. VI, p. 340.
Costa Rica declared war on Japan. Ibid.,
December 13, 1941, Vol. V, pp. 490—491;
ibid., December 20, 1941, Vol. V, p. 558.
The Dominican Republic declared war on
Japan. Ibid., December 13, 1941, Vol. V,
p. 492.
Ecuador announced its solidarity with the
United States in war with Japan. Ibid.,
p. 493.
El Salvador declared war on Japan. Ibid.,
p. 493.
‘For chronology covering period March 1938 to De-
cember 1941, see the Bulletin of December 27, 1941,

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The War
CHRONOLOGY, DECEMBER 1941 TO APRIL 1942’
1941
December 7
(December 8, Tokyo time)
Japan attacked LTnited States and British ter-
ritory beginning at 1 :20 p.m. (7: 50 a.m.,
Honolulu time) and occupied the Interna-
tional Settlement at Shanghai. New York
Times, December 8, 1941, pp. 1, 4; Decem-
ber 9, p. 14; Department of State Bulletin,
December 20, 1941, Vol. V, pp. 534—535.
Japan rejected United States document dated
November 26 delivered at 2: 20 p.m. at
Washington. Department of State Bulle-
tin, December 13, 1941, Vol. V, pp. 466—
470; ibid., December 20, 1941, Vol. V, pp.
534—535.
The Japanese Emperor declared war on the
United States and the British Empire.
New York Times, December 9, 1941, p. 28;
Department of State Bulletin, December 20,
1941, Vol. V, p. 557.
Canada declared a state of war with Japan.
Department of State Bulletin, December
20, 1941, Vol. V, p. 558.
Peru offered its assistance to the United
States in war with Japan. Ibid., Decem-
ber ‘13, 1941, Vol. V, p. 501.
Greece announced (on December 10) its sev-
erance of diplomatic relations with Japan.
Ibid., p. 509; ibid., April 18, 1942, Vol. VI,
p. 344.
Yugoslavia announced (on January 19, 1942)
a state of war with Japan. Ibid., February
7, 1942, Vol. VI, p. 144.
1941
December 8
Japan invaded Thailand, which capitulated.
New York Times, December 9, 1941, p. 10.
Great Britain declared war on Japan. New
York Times, December 9, 1941, p. 1; De-
partment of State Bulletin, December 20,
1941, Vol. V, p. 557.
The United States declared a state of war
with Japan (4: 10 p.m.). Department of
State Bulletin, December 13, 1941, Vol. V,
p. 475; ibid., December 20, 1941, Vol. V,
p. 557.
Australia declared a state of war with Japan.
Ibid., December 20, 1941, Vol. V, p. 559.
Brazil announced its solidarity with the
United States in war with Japan. Ibid.,
December 13, 1941, Vol. V, p. 488.
Colombia severed diplomatic relations with
Japan. Ibid., pp. 489—490; ibid:, April 18,
1942, Vol. VI, p. 340.
Costa Rica declared war on Japan. Ibid.,
December 13, 1941, Vol. V, pp. 490—491;
ibid., December 20, 1941, Vol. V, p. 558.
The Dominican Republic declared war on
Japan. Ibid., December 13, 1941, Vol. V,
p. 492.
Ecuador announced its solidarity with the
United States in war with Japan. Ibid.,
p. 493.
El Salvador declared war on Japan. Ibid.,
p. 493.
‘For chronology covering period March 1938 to De-
cember 1941, see the Bulletin of December 27, 1941,